req advice on reprogramming the CB4 Callaway 5.7

[HSVGTSCoupe]

Gidday all... I've been reading the posts for months & hearing about this mod & that mod so it finally got me thinkin.... should I or shouldn I?? My car goes damn hard already but can u ever get enough? When I see & HEAR cars like Will's I think FU:censored:CK ME thats quik! I don't want to S/C mine as I really wanna stick with the existing diff/clutch & engine hardware so maybe a ECM tune or similar is the go?? I hear all the names.. WORTEC/Paul/LSV etc etc but not sure wot is best suited to my car? I think my setup is identical to the 02/03 GTS-R sold here in the UK (300KW or about 400 neddies). What simple mods am I looking at to maximise performance using 95 unleaded? The only mod already done is a full stainless zorst with pacemaker extractors. Let the games begin! Cheers, Julian

[jagsy]

Are you MAf'd or Mafless?

[HSVGTSCoupe]

mafless I think... although not really sure. It's stock HSV GTS (GTS-R in UK) I'm not much of a tech head.. I push the GO pedal and the she goes. How do I tell? There is a red anodised "HSV" block where the large air pipe meets the top of the engine.

[ringram]

Id consider a cam and pcm update. I think you can get a little extra with an uprated exhaust, but they are already better than the std car. Cam is quite mild at present. Cams kits are around £600 US. Should be an easy 50bhp available there.